Hey.
Just built my first rig yesterday, everything works proper, installed all the proper drivers and everything, however, whenever I boot up my PC I am first greeted with a "No video display detected" or something similar to that, after which a black screen is displayed for around 10 seconds after which the system boots normally into win 10, BUT! the graphics card (Gigabyte rtx 2060 pro) only lights on (not sure if it means the entire card or only the LEDs) after around another 20-30 seconds, after which it appears no further problems appear (haven't used it to play video games yet so I can't truly say anything on that regard.
What may be the issue?

Speedy Gonzales

Notable

What are your full PC specs ? Which PSU and Motherboard you are having ? Have you connected the Monitor's cable to the GPU (HDMI/DVI etc,) ? Does your Motherboard has support for integrated graphics as well ?

What are your full PC specs ? Which PSU and Motherboard you are having ? Have you connected the Monitor's cable to the GPU (HDMI/DVI etc,) ? Does your Motherboard has support for integrated graphics as well ?